It's possible you suffer from trichotillomania. I had a friend in grade school who had this condition before it was understood.
From the Mayo Clinic: " Trichotillomania (trik-o-til-o-MAY-nee-uh) is a disorder that involves recurrent, irresistible urges to pull out hair from your scalp, eyebrows or other areas of your body, despite trying to stop."
http://www.mayoclinic.org/diseases-conditions/trichotillomania/basics/definition/con-20030043
Please click through all the pages of this link. If it sounds like what you're experiencing, you can use this info to open a conversation with your mother. The Mayo Clinic is highly respected, and the two of you can discuss what you read. There is help available, and your doctor can help.
I wish you the best. :)
